Confinement-induced enhancement of hole mobility in MEH-PPV

被引：9

作者：

Cannon, Joseph P. ^{[1
]}

Bearden, Steven D. ^{[1
]}

Khatkhatay, Fauzia M. ^{[1
]}

Cook, Joseph ^{[1
]}

Selmic, Sandra Zivanovic ^{[1
]}

Gold, Scott A. ^{[1
]}

机构：

[1] Louisiana Tech Univ, Inst Micromfg, Ruston, LA 71272 USA

来源：

SYNTHETIC METALS | 2009年 / 159卷 / 17-18期

关键词：

MEH-PPV; Phenylenevinylene; Template nanofabrication; Template wetting; Hole mobility; Space-charge-limited current; Ultraviolet-visible spectroscopy; UV-vis; Nanotube; Photovoltaic; LIGHT-EMITTING-DIODES; FIELD-EFFECT TRANSISTORS; CONJUGATED POLYMERS; POLY(P-PHENYLENE VINYLENE); THIN-FILM; INTERCHAIN INTERACTIONS; CHARGE-TRANSPORT; EMISSION; DEVICES; NANOFIBERS;

D O I：

10.1016/j.synthmet.2009.05.035

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Template wetting nanofabrication was used to create high-aspect-ratio, nanotubular structures from the semiconducting polymer poly(2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylenevinylene). Carrier transport in these nanostructures was determined to be space-charge-limited and thermally activated, with low-field mobilities shown to up to three be orders of magnitude higher than those typically reported for thin-films of the same material. Ultraviolet-visible spectroscopy showed a 0.3-0.6eV reduction in the leading-edge absorption energy of polymer nanotubular structures compared to thin-films or solutions. Photovoltaic devices constructed from the nanotubes demonstrated photovoltaic fill factors superior to those measured in similarly constructed thin-film devices. These results are indicative of a confinement-induced ordering present in the nanotubular material. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1786 / 1791

页数：6

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